<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="UTF-8" />
		<meta http-equiv="X-UA-Compatible" content="IE=edge" />
		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
		<title>Document</title>
		<style>
			.tip-bar {
				display: inline-flex;
				flex-direction: row;
				align-items: center;
				height: 30px;
				background-color: rgba(0, 0, 0, 0.4);
				border-radius: 16px;
			}
			img {
				width: 30px;
				height: 30px;
				border-radius: 50%;
				margin-right: 5px;
			}
			span {
				font-size: 13px;
				color: white;
				margin-right: 8px;
			}
		</style>
	</head>
	<body>
		<div class="tip-bar">
			<img src="https://bfs.biyao.com/group1/M01/A2/67/rBACVGA_iOuAYaTxAAAPbted3yE165.png" alt="" />
			<span>183***138对这件商品感兴趣</span>
		</div>

		<script>
			let tipList = [
				{
					icon: 'https://bfs.biyao.com/group1/M01/A6/97/rBACYWBCHqyAFH5tAAANZXX5Eww646.png',
					title: 'coderwhy对这件商品感兴趣',
				},
				{
					icon: 'https://bfs.biyao.com/group1/M01/A2/67/rBACVGA_iOuAYaTxAAAPbted3yE165.png',
					title: '123***814对这件商品感兴趣',
				},
				{
					icon: 'https://bfs.biyao.com/group1/M00/7F/4E/rBACYV16HseAP-PnAAAW9bbVoKE463.png',
					title: '刘军对这件商品感兴趣',
				},
			]

			let tipBarEl = document.querySelector('.tip-bar')
			let imgEl = tipBarEl.querySelector('img')
			let spanEl = tipBarEl.querySelector('span')

			var index = 0
			setInterval(function () {
				imgEl.src = tipList[index].icon
				spanEl.textContent = tipList[index].title

				index++
				index = index % tipList.length
				console.log('index: ', index)
			}, 3000)
		</script>
	</body>
</html>
